reorganize Rscons module class methods

lib/rscons.rb

@@ -19,6 +19,7 @@ require_relative "rscons/builders/simple_builder"
 
 # Namespace module for rscons classes
 module Rscons
+
   # Names of the default builders which will be added to all newly created
   # {Environment} objects.
   DEFAULT_BUILDERS = [
@@ -37,10 +38,12 @@ module Rscons
   # Class to represent a fatal error while building a target.
   class BuildError < RuntimeError; end
 
+  class << self
+
     # Remove all generated files.
     #
     # @return [void]
-  def self.clean
+    def clean
       cache = Cache.instance
       # remove all built files
       cache.targets.each do |target|
@@ -61,7 +64,7 @@ module Rscons
     # @param path [String] the path to examine.
     #
     # @return [Boolean] Whether the given path is an absolute filesystem path.
-  def self.absolute_path?(path)
+    def absolute_path?(path)
       path =~ %r{^(/|\w:[\\/])}
     end
 
@@ -70,7 +73,7 @@ module Rscons
     # @param target [Symbol, String] Target name.
     #
     # @return [Boolean] Whether the given target is a phony target.
-  def self.phony_target?(target)
+    def phony_target?(target)
       target.is_a?(Symbol)
     end
 
@@ -80,14 +83,14 @@ module Rscons
     # @param suffix [String] The new filename suffix, e.g. ".exe".
     #
     # @return [String] New path.
-  def self.set_suffix(path, suffix)
+    def set_suffix(path, suffix)
       path.sub(/\.[^.]*$/, "") + suffix
     end
 
     # Return the system shell and arguments for executing a shell command.
     #
     # @return [Array<String>] The shell and flag.
-  def self.get_system_shell
+    def get_system_shell
       @@shell ||=
         begin
           test_shell = lambda do |*args|
@@ -120,7 +123,7 @@ module Rscons
     # that it is running in MSYS then ["env"] will be returned.
     #
     # @return [Array<String>] Command used to execute commands.
-  def self.command_executer
+    def command_executer
       @@command_executer ||=
         if Object.const_get("RUBY_PLATFORM") =~ /mingw/
           if ENV.keys.find {|key| key =~ /MSYS/}
@@ -139,9 +142,11 @@ module Rscons
     # @param val [Array<String>] Command used to execute commands.
     #
     # @return [Array<String>] Command used to execute commands.
-  def self.command_executer=(val)
+    def command_executer=(val)
       @@command_executer = val
     end
+
+  end
 end
 
 # Unbuffer $stdout